JPS60119484A - Synchronized radar network system - Google Patents
Synchronized radar network systemInfo
- Publication number
- JPS60119484A JPS60119484A JP22666583A JP22666583A JPS60119484A JP S60119484 A JPS60119484 A JP S60119484A JP 22666583 A JP22666583 A JP 22666583A JP 22666583 A JP22666583 A JP 22666583A JP S60119484 A JPS60119484 A JP S60119484A
- Authority
- JP
- Japan
- Prior art keywords
- transmitting
- target
- receiving antenna
- receiving
- antenna
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はシンクロナイズドレーダネットワーク方式に係
り、特に軍事用レーダネットワーク等に適用し得るシン
クロナイズドレーダネットワーク方式に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a synchronized radar network system, and particularly to a synchronized radar network system that can be applied to military radar networks and the like.
一般に従来のレーダは自己のアンテナから電波を発射し
、その反射波に基づき目標の位置清報を得ている。例え
ば軍事用レーダにおいては、自己の位置を相手に探知さ
れないことが望ましいが、自己が電波ケ発射した場合容
易に相手から探知され得るという欠点があった。Generally, conventional radars emit radio waves from their own antennas and obtain detailed information on the target position based on the reflected waves. For example, in a military radar, it is desirable that its own position not be detected by the other party, but it has the disadvantage that if it emits radio waves, it can easily be detected by the other party.
本発明は上記の事情に鑑みて提案されたもので、その目
的とするところは、自己の位置τ曝露することなく、目
標情報をネットワーク内で共有し得るシンクロナイズド
レーダネットワーク方式を提供するにある。The present invention was proposed in view of the above circumstances, and its purpose is to provide a synchronized radar network system that can share target information within a network without exposing its own position τ.
本発明によるシンクロナイズドレーダネットワーク方式
は複数の送受池アンテナから目標へ送信波を出し、受信
アンテナと他の送受偽アンテナに対してモニタ波を出し
、上記送信波に対する上記目標からの反射波？上記受信
アンテナで受信し、上記送信波中に精密時計の時刻デー
タを含ませることにより受信のみを行っているレーダで
上記目標の方位および距離を測定し、上記精密時計の時
刻誤差を複数のレーダからの時刻データを用いて補正す
ることを特徴とし、離れた位置にある送信アンテナ及び
受鍋アンテナを用いてネットワークを溝成し、相互の時
刻をシンクロナイズすること即ち各アンテナが精密時計
を持ち送受偽アンテナの時計全基準として時刻を一致さ
せることにより、反射波の持つ位置情報を解析するよう
にし、これにより１個の送受信アンテナから発射された
電波の反射波を多数の受信アンテナが受信することによ
り送信機の台数が最小限となり、また目標の位置情報を
共有できるとともに、ネットワーク中の送受信アンテナ
全複数台とし、時分割送信することにより、相手が自己
の位置を探知すること全困難にすることが可能であり、
且つ受信アンテナは受信の与であるため、相手からの探
知が不可能となるようにして上配従米の欠点を解消し得
るようにしたものである。The synchronized radar network system according to the present invention emits transmission waves from a plurality of transmitting/receiving antennas to a target, emits monitor waves to a receiving antenna and other false transmitting/receiving antennas, and returns reflected waves from the target to the transmitted waves. The receiving antenna receives data, and by including the time data of the precision clock in the transmitted wave, the radar that only performs reception measures the direction and distance of the target, and the time error of the precision clock is measured by multiple radars. The network is configured using transmitting antennas and pot antennas located at separate locations, and synchronizes mutual time. In other words, each antenna has a precision clock and transmits and receives data. By matching the time as a reference for all fake antenna clocks, the position information of the reflected waves is analyzed, and as a result, multiple receiving antennas receive the reflected waves of the radio waves emitted from one transmitting and receiving antenna. This minimizes the number of transmitters and makes it possible to share the target's location information, and by using multiple transmitting and receiving antennas in the network and time-sharing transmission, it is completely difficult for the other party to detect your location. It is possible to
In addition, since the receiving antenna is used for reception, it is made impossible to be detected by the other party, thereby solving the drawbacks of the superior-subordinate system.
本発明の一実施例を図面を参照して詳細に説明する。An embodiment of the present invention will be described in detail with reference to the drawings.
第１図は本発明の一実施例の構成を示す図、第２図は第
１図における送信波中の時刻（１号の一例を示す図であ
る。FIG. 1 is a diagram showing the configuration of an embodiment of the present invention, and FIG. 2 is a diagram showing an example of the time (No. 1) during the transmission wave in FIG. 1.
第１図においでｌは送受信アンテナ、２は受（ａアンテ
ナ、３は目標であり、送受イーアンテナｌはネットワー
ク中に必要に応じ任意の台数装備され、各送受信アンテ
ナＬはそれぞれ追尾用の指向性アンテナと、モニタ波発
信用の無指向性アンテナからなる。また受信アンテナ２
はネットワーク中に必要に応じ任意の台数装備され、各
受信アンテナ２はそれぞれ追尾用とモニタ波受信用の２
個の指向性アンテナから構成されている。In Figure 1, l is a transmitting/receiving antenna, 2 is a receiving antenna, 3 is a target, any number of transmitting/receiving antennas L can be installed as needed in the network, and each transmitting/receiving antenna L has a tracking direction. It consists of a directional antenna and an omnidirectional antenna for transmitting monitor waves.
are installed in any number as required in the network, and each receiving antenna 2 has two antennas, one for tracking and one for receiving monitor waves.
It consists of directional antennas.
上記本発明の一実施例の作用について説明する。The operation of the above embodiment of the present invention will be explained.
第１図において送受信アンテナｌから送信される送信波
及びモニタ波は時刻信号が伝送されるものであればどの
ような形式でもよいが例えば第２図を例とした時刻１１
号を含む電波を１例として示す。受信アンテナ２は目標
３からの反射波と送受１Δアンテナｌからのモニタ波を
受信する。受信アンテナ２ではこれ等の情＠ｉヶ用い３
−
て目標３の位置１ｎ報金得る。In Fig. 1, the transmission wave and monitor wave transmitted from the transmitting/receiving antenna l may be in any format as long as a time signal is transmitted, but for example, the time 11 shown in Fig. 2 is an example.
An example of a radio wave containing a signal is shown below. The receiving antenna 2 receives the reflected wave from the target 3 and the monitor wave from the transmitting/receiving 1Δ antenna l. For receiving antenna 2, these information @ i is used 3
- Receive a reward for position 1n of target 3.
これを数式化すると以下に示すとおりとなる３ここで次
の記号を定義する。Converting this into a mathematical formula results in the following.3Here, the following symbols are defined.
Ｔ１ ：送受色アンテナｌが送信した時刻、Ｔ、：受１
ハアンテナ２が反射波を受信した時刻、
Ｔ、：受信アンテナ２がモニタ波を受信した時刻、
Ｂ＆ ：受信アンテナ２から見た目標３の方位、Ｂ１
：受信アンテナ２から見たモニタ波の方位、
Ｒ１：送受（Ｈアンテナｌから目標３までの距離、
Ｒ１二目標３から受信アンテナ２までの距離、Ｒ１：送
受偽アンテナｌから受信アンテナ２までの距離とし、
光速１ｃとすると、次の式が成立する。T1: Time when transmitting/receiving antenna l transmits, T,: Receiving 1
C: Time when antenna 2 received the reflected wave, T: Time when receiving antenna 2 received the monitor wave, B&: Direction of target 3 as seen from receiving antenna 2, B1
: Direction of monitor wave as seen from receiving antenna 2, R1: Transmission/reception (distance from H antenna 1 to target 3, R1: Distance from target 3 to receiving antenna 2, R1: Distance from false transmitting/receiving antenna 1 to receiving antenna 2) If the distance is the distance and the speed of light is 1c, then the following formula holds true.
Ｒ１十Ｒ，＝（： （Ｔｌ−ＴＩ ）・・・（１）Ｒｍ
＝ＣＣＴｓ −Ｔ＋ ）・・・（２）また、方位と距
離の関係は、次の式で表わさ４−
詐る。R10R,=(: (Tl-TI)...(1)Rm
=CCTs -T+ )...(2) Also, the relationship between direction and distance is expressed by the following formula.
・ ・ ・（３）
従って（ｉ） 、 （２） 、 （３）式から、Ｒ，は
仄のとおりとなる。・ ・ ・(3) Therefore, from equations (i), (2), and (3), R is as follows.
・・・（４）
（Ｔ ＊ ｍ Ｔ ＊ ＊ Ｔｍは時刻で確定値、目標
方位Ｂｉ及びモニタ波方位Ｂ、はそれぞれ測足可能であ
り確定値となる。）
目標・３の位置はＢ、とＲ８で表わされるから、全ての
受信アンテナ２で目標３の位置ヲ知ることができる。...(4) (T * m T * * Tm is a fixed value at time, and the target direction Bi and monitor wave direction B can each be measured and are fixed values.) The position of target 3 is B, Since this is expressed as R8, the position of the target 3 can be known from all receiving antennas 2.
今までの説明では、全ての送受信アンテナｌ及び受信ア
ンテナ２の精密時計は整合されているものとしたが、実
際には常に整合されているわけではなく誤差を持ってい
るので、ここで精密時計の誤差の修正方法について述べ
る。シｒまず送受１−アンテナｌの精密時計の修正方法
について述べる。基準となる送受信アンテナｌニ対し、
他の送受１ｄアンテナｌでは自己のアン 。In the explanation so far, it has been assumed that the precision clocks of all transmitting/receiving antennas L and receiving antenna 2 are aligned, but in reality they are not always aligned and have errors, so we will explain the precision clocks here. We will explain how to correct the error. First, we will explain how to correct the precision clock of transmitter/receiver 1-antenna l. For the reference transmitting and receiving antenna l,
Other transmitting/receiving 1d antennas have their own antennas.
テナで送信することにより得られた目標３との距離と、
受信アンテナとして動作させることにより得られた目標
３との距離の差から誤差時間が得られる。これケ数式で
表現すると、（４式の受信アンテナ２を基準以外の送受
信アンテナｌと見なして、次式が得られる。ここで△ｔ
は基準となる送受信アンテナｌに対する基準以外の送受
信アンテナｌの時刻誤差である。The distance to target 3 obtained by transmitting with Tena,
The error time can be obtained from the difference in distance to the target 3 obtained by operating it as a receiving antenna. Expressing this using a mathematical formula, (regarding the receiving antenna 2 of formula 4 as a transmitting/receiving antenna l other than the reference, the following formula is obtained. Here, △t
is the time error of the transmitting/receiving antenna l other than the reference with respect to the reference transmitting/receiving antenna l.
２ （Ｔ、 ＋△ｔ−’Ｊ’、）＋（Ｔ、十△ｔ−Ｔ、
）ＣＯａ（Ｈ，−ｔｓ、）・・・（５）
ｌは全て送受信アンテナであるから（５）式の左辺のＲ
，は自己のレーダで測足できる。従って（５）式を△ｔ
について解くことにより、それぞれの送受偽アンテナｌ
は基準の送受信アンテナ直に対する時刻誤差を得ること
ができる。2 (T, +△t-'J',)+(T, 10△t-T,
) COa (H, -ts, )...(5) Since l are all transmitting and receiving antennas, R on the left side of equation (5)
, can be measured using your own radar. Therefore, equation (5) can be changed to △t
By solving for each transmitting and receiving false antenna l
can obtain the time error relative to the reference transmitting and receiving antenna.
次に受信アンテナ２の持つ精密時計の修正方法について
述べる。既に述べた方法により、全ての送受信アンテナ
ｌが持つ精密時計は整合されているとする。このとき、
複数の送受（１アンテナｌにより複数の（４）式が得ら
れる。△ｔ’６受信アンテナ２の時刻誤差とすると、得
られた複数の（４）式は次のとおりとなる。Next, a method for correcting the precision clock of the receiving antenna 2 will be described. It is assumed that the precision clocks of all the transmitting and receiving antennas l have been matched by the method already described. At this time,
A plurality of equations (4) can be obtained for a plurality of transmission/reception (one antenna l).If Δt'6 is the time error of the receiving antenna 2, the obtained equations (4) are as follows.
２ （Ｔ、十△ｔ−Ｔ、）＋（Ｔ、＋△ｔ−Ｔ１ ）Ｃ
Ｏ８ＣＩ３． −Ｂ、）２（Ｔｇ’ 十△１−ＴＩ Ｊ
）＋（％ Ｉ ＋へｔ−Ｔ、’ ）ＣＯ８（１：ｌ、
メー七−′ ）・・・ （６）
（６）式は△を以外全て既知であるから、これから受信
アンテナ２の時刻誤差△ｔが得られる。2 (T, +△t-T,) + (T, +△t-T1)C
O8CI3. -B,)2(Tg' 1△1-TI J
) + (% I + to t-T,' ) CO8 (1:l,
Since everything in equation (6) except Δ is known, the time error Δt of the receiving antenna 2 can be obtained from this.
これまでに述べた時刻誤差を用いてそれぞれの送受信ア
ンテナｌおよび受信アンテナ２で精密時計を修正するこ
とにより、ネットワーク中の全ての送受信アンテナｌと
受１ぎアンテナ２の時刻をシンクロナイズすることがで
きる。By correcting the precision clocks of each transmitting/receiving antenna L and receiving antenna 2 using the time errors described above, it is possible to synchronize the times of all transmitting/receiving antennas L and receiving antennas 2 in the network. .
７−
以上により本発明によれば受信アンテナは電波を発射し
ないため、自己の位置を曝露することはなく、また他の
手段によるネットワークを用いず、目標情報をネットワ
ーク内部で供用化できる等の優れた効果が奏せらするも
のである。7- As described above, according to the present invention, since the receiving antenna does not emit radio waves, its own position is not exposed, and target information can be made available within the network without using a network by other means. This is the effect that can be achieved.
第１図は本発明の一災施例の構成を示す図、第２図は第
１図における送１―波中の時刻酒号の一例を示す図であ
る。
ｌ・・・送受色アンテナ、２・・・受信アンテナ、３・
・・目標。
出願人復代理人 弁理士 鈴江武 彦
８−
第１図
ｊぎ一イ４；ψ１バー２１一
時間FIG. 1 is a diagram showing the configuration of an emergency embodiment of the present invention, and FIG. 2 is a diagram showing an example of a time signal during transmission 1 in FIG. 1. l...color transmitting and receiving antenna, 2...receiving antenna, 3...
··the goal. Applicant's sub-agent Patent attorney Takehiko Suzue 8- Fig.
Claims (1)
ンテナと他の送受備アンテナに対してモニタ波を出し、
上記送信波に対する上記目標からの反射波を上記アンテ
ナで受信し、上記送信波中に精密時計の時刻データを含
ませることにより受信のみを行っているレーダで上記目
標の方位および距ｌｉ９を測定し、上記精密時計の時刻
ｌ差を複数のレーダからの時刻データを用いて補正する
ことを特徴とするシンクロナイズドレーダネットワーク
方式。Transmits to the target from multiple transmitting/receiving antennas, emits monitor waves to the receiving antenna and other transmitting/receiving antennas,
The reflected wave from the target in response to the transmitted wave is received by the antenna, and the direction and distance li9 of the target are measured by a radar that only receives by including time data from a precision clock in the transmitted wave. , a synchronized radar network system, characterized in that the time l difference of the precision clock is corrected using time data from a plurality of radars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22666583A JPS60119484A (en) | 1983-11-30 | 1983-11-30 | Synchronized radar network system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22666583A JPS60119484A (en) | 1983-11-30 | 1983-11-30 | Synchronized radar network system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60119484A true JPS60119484A (en) | 1985-06-26 |
Family
ID=16848735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22666583A Pending JPS60119484A (en) | 1983-11-30 | 1983-11-30 | Synchronized radar network system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60119484A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04204190A (en) * | 1990-11-30 | 1992-07-24 | Nec Corp | Radar |
| GB2407723A (en) * | 2003-10-15 | 2005-05-04 | Eads Astrium Gmbh | Drift compensation using reference signals between bi-static radar |
| JP2006125947A (en) * | 2004-10-27 | 2006-05-18 | Tdk Corp | Radar system |
| JP2018084432A (en) * | 2016-11-21 | 2018-05-31 | 株式会社東芝 | Radar system and radar signal processing method thereof |
-
1983
- 1983-11-30 JP JP22666583A patent/JPS60119484A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04204190A (en) * | 1990-11-30 | 1992-07-24 | Nec Corp | Radar |
| GB2407723A (en) * | 2003-10-15 | 2005-05-04 | Eads Astrium Gmbh | Drift compensation using reference signals between bi-static radar |
| FR2862138A1 (en) * | 2003-10-15 | 2005-05-13 | Eads Astrium Gmbh | METHOD FOR COMPENSATING THE DERIVATIVE FOR RADAR MEASUREMENTS USING REFERENCE RADAR SIGNALS |
| GB2407723B (en) * | 2003-10-15 | 2006-08-02 | Eads Astrium Gmbh | Method for drift compensation with radar measurements with the aid of reference radar signals |
| GB2426135A (en) * | 2003-10-15 | 2006-11-15 | Eads Astrium Gmbh | Radar system |
| US7209072B2 (en) | 2003-10-15 | 2007-04-24 | Eads Astrium Gmbh | Method for drift compensation with radar measurements with the aid of reference radar signals |
| JP2006125947A (en) * | 2004-10-27 | 2006-05-18 | Tdk Corp | Radar system |
| JP2018084432A (en) * | 2016-11-21 | 2018-05-31 | 株式会社東芝 | Radar system and radar signal processing method thereof |
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